Cosmetic surgery not the most common surgery by Philip Gowman posted 17 Dec 201014 Mar 2015 updated 14 Mar 2015 in Life & Leisure | News and Current Affairs. < 1 minute read So you thought cosmetic surgery was the most common form of surgery in Korea? Wrong. It’s piles. http://bit.ly/eI4W1L #. The Korea National Health Insurance Corp gives the statistics in the Korea Times.